Oracle

What is Oracle?

Oracles play a foundational role in the creation of the verifiable web, connecting blockchains that would otherwise be isolated to offchain data and compute, and enabling interoperability between blockchains.

How oracle works?

Oracle provide tokens price from major liquidity pools(AMM) sorted by highest liquidity by cron job every hour. Data available from A-DEX GraphQL API via REST or WebSocket.

Examples:

cURL

curl -X POST https://wax.a-dex.io/v1/graphql \
-H "Content-Type: application/json" \
-d '{
    "query": "query MyQuery { adex_oracle { contract precision price_amount price_contract price_precision price_symbol_code sha256 symbol_code updated_at } }"
}'

Javascript

const query = `
   query MyQuery {
  adex_oracle {
    contract
    precision
    price_amount
    price_contract
    price_precision
    price_symbol_code
    sha256
    symbol_code
    updated_at
  }
}`;
    
const response = await fetch('https://wax.a-dex.io/v1/graphql', {
    method: 'POST',
    headers: {
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({ query })
});

const responseData = await response.json();